Note that this is a discontinued product. You may want to visit the brand's page here to browse their newer products.
What reviewers think
Bloggers and YouTubers have tried this product—so we've summarized their strongest opinions below. Links to full reviews follow.
Product Strengths
- The Surround-55 tripole combines dipole and monopole technologies, creating both diffuse and direct sound, which enhances the surround sound experience
- The speakers provide good timbre matching with front speakers, particularly in high frequencies, due to the direct radiators
- The speakers create a well-balanced sound field, even when the listener is not in the 'sweet spot'
- Construction quality is nice, sturdy, hefty, and clean looking, and the laminate was applied neatly
Product Considerations
- The Surround-55 tripole lacks significant bass extension with an F3 of 87 Hz
- Proper balancing and placement are key to achieving optimal imaging and preventing unwanted distractions from the front radiator
Takeaway: The Surround-55 tripole speakers offer a unique surround sound experience by combining diffuse and direct sound. With proper setup, these speakers can provide a balanced and immersive sound field for movies and other audio content.
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SUR55T Tripole
reviews

Manufacturer details
- Nominal system impedance: 4 ohm (Z-min 4.2 ohm)
- Frequency Response: 80-20Khz (average response in room +/- 3dB)
- Frequency roll off: 80 Hz (-6dB at 80 Hz near field)
- Crossover Frequency: 1.6 Khz ("Phase focused" 4th/2nd oder)
- Tweeter: 1.1" Silk Coated Dome
- Woofer: 5.25" Coated Glass Fibre
- Power handling: 100 watt (Long term IEC-268-5)
- Power handling: 55 watt (Rated IEC-268-5)
- Recommended Amplifier Power: 25-200 watt
- Sensitivity: 85 dB (average SPL 2.83V/1mtr on axis 200-10Khz)
- System principle: Sealed enclosure
- Connection: Terminal gold plating (screw for 5 mm cable / Banana)
- Dimensions (HxWxD): 10.2 x 7 x 8.7" / 25.9 x 17.8 x 22.1 cm
- Weight: 10.25 lb / 4.7 kg
- Finish: Black Vinyl
Brand highlights
Taking a step back to look at reviewers' thoughts of the brand's entire lineup—not just this product—what stands out most is the following:
- M&K Sound speakers are frequently used as reference monitors in music and film production facilities, indicating a professional-grade accuracy.
- The brand's Phased-Focused crossover technology is designed to create a uniform timbre balance throughout the listening room, improving the three-dimensional response from almost any position.
- M&K Sound's Tripole speaker design combines a direct radiator for precise directional sound with a dipole for diffused sound, delivering a more immersive 360-degree soundstage.
- M&K designs subwoofers implementing a push-pull driver configuration to reduce distortion and increase bass output, enabling a smaller cabinet size while maintaining powerful bass.
Select products
MP150
- Positioning: An entry-level on-wall speaker designed for compact spaces.
- Description: Offers low-compression tweeters and studio-monitor derived components to deliver clear sound in environments with limited space. Compared to higher series like the 300, M, and 950, it sacrifices advanced features and power for simplicity and affordability.
S300
- Positioning: A compact, full-range speaker aimed at delivering reference home cinema sound.
- Description: Uses driver mounting with isolated tweeter and woofer brackets to reduce cabinet coloration and maintain clarity. When compared with the S300T, M70, and MP950, it presents a straightforward design focused on purity of sound rather than the enhanced surround or advanced performance found in the higher series.
S300T
- Positioning: A specialized tripole speaker optimized for immersive and precisely positioned rear sound.
- Description: Integrates isolated side chambers with additional drivers to boost surround imaging and deliver a more enveloping sound field than the standard S300. In comparison with the M70 and MP950, its focus remains on enhanced surround coverage rather than the overall higher power and advanced engineering of the premium lines.
M70
- Positioning: A design-focused, ultra-slim on-wall speaker balancing aesthetics with modern performance.
- Description: Features optimized crossover design and new components for easy, vibration-free installation paired with clear and dynamic sound reproduction. Relative to the entry-level MP150 and 300 series, it offers refined engineering and elegance, though it does not reach the high-powered, professional level found in the 950 series.
MP950
- Positioning: A high-end on-wall speaker engineered for exceptional performance in demanding home cinema settings.
- Description: Uses professional-grade drivers with a phase-focused crossover for high power handling, speed, and precise imaging that set it apart with superior sound dynamics. Compared to the MP150, S300 series, and M70, it delivers the most advanced technology.
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Used
M&K Sound
What if you spend more?
The first THX® Certified Dominus in-wall loudspeaker for very large home cinemas with both vertical and horizontal installation flexibility
M&K Sound has combined a high-performance one-inch soft dome tweeter with a precision-crafted aluminum waveguide to ensure accurate and focused vertical and horizontal dispersion characteristics. The design marks the first time M&K Sound has developed a horn-loaded loudspeaker which guarantees real and natural delivery, whether placed vertically or horizontally.
The IW500 combines two Kurt Muller three-inch soft dome midrange drivers (800 Hz to 2500 Hz) with shallow waveguides. These pair with a complex crossover network to promote an audible smoothness and non-fatiguing character across the frequency range. By consolidating excellent vertical response from the crossover with excellent horizontal dispersion from the vertical driver array, the IW500 produces a profoundly flat power response.
The IW500's onboard dual 8-inch woofers employ large magnets and carbon fiber cones to achieve its high sensitivity rating (92 dB SPL @ 1 meter with 2.83V), enabling a full-bodied and visceral low-frequency response. M&K Sound's proprietary 'Capacitive Coupling' design feature in the crossover allows for a much smaller enclosure than normally required. It also ensures tighter bass response, increased impedance (easier to drive) and less distortion.
The IW500's revolutionary crossover is responsible for the loudspeaker's smooth frequency and polar responses. Transition between high, mid and bass frequencies is seamless, a trademark designfeature of M&K Sound's reference loudspeakers. The IW500 includes newly developed transducerswith extra-large magnets for less compressed and less distorted sound.
Product Strengths
- THX Certified Dominus means it is optimized for room volumes of up to 6,500 cubic feet
- Can be used as a left, center, or right speaker and is the most powerful reference loudspeaker produced to date by M&K Sound
- Can be mounted either vertically or horizontally as a center channel
- Designed for use in high-end home theaters or hifi systems, it boasts an 80 Hz – 20 kHz (+/-1.5 dB) frequency response and a maximum SPL of greater than 117 dB
- Combines a high-performance one-inch soft dome tweeter with a precision-crafted aluminum waveguide to ensure accurate and focused vertical and horizontal dispersion
Product Considerations
- Should ideally be paired with one or more subwoofers, such as M&K Sound's THX Certified Dominus X15+ subwoofer
- Requires an amplifier with 100-500 watts of power
Takeaway: The IW500 is designed for large home theater installations, bringing sonic precision, neutrality, and articulation. Its THX Dominus certification ensures high performance and makes it a great choice for those looking for unrivaled audio in large environments.
Video review
Our take on the brand
Introducing the T Series The T66 is the first model in GoldenEar’s new T Series. While it boasts several significant refinements of our time-tested design concepts, the T66 is undeniably a GoldenEar loudspeaker, placing beautiful sound and music before all else. Honoring the Triton Series The T66 honors the critically acclaimed Triton Series, sharing a similarly tall, slender profile; built-in DSP-controlled subwoofer amplification; and a driver complement comprising GoldenEar’s High-Velocity Folded Ribbon AMT tweeter, cast-basket mid/bass units, quadratic planar radiators, and long-throw powered sub-bass section. Onward and Upward Several important cosmetic and sonic refinements distinguish the new T66 from previous GoldenEar speakers. These include a dramatically augmented crossover design, high-quality internal wiring, a new cast-aluminum base and metal grille, and, in addition to GoldenEar’s Gloss Black cabinet finish, a vibrant Santa Barbara Red.
Our summary
Product Strengths
- Excellent bass performance is a defining feature, providing tight, smooth, even, solid, and tangible bass extension into the 20 Hz range, eliminating placement issues associated with separate subwoofers
- Balanced overall sound, coherence, and ability to present music in a natural and effortless way is consistently praised
- High levels of detail come through with the High-Velocity Folded Ribbon AMT tweeter and cast-basket mid/bass units
- A holographic image over the seating area of a typical sofa is capable with excellent imaging and a wide and open soundstage, even when not seated in the exact sweet spot
- The Santa Barbara Red finish option receives high marks for its visual appeal
Product Considerations
- Still a significant investment, especially the Santa Barbara Red finish
- The metal grille covering the drivers is not designed to be easily removed
- Care should be taken with system matching, due to a slightly hot high-end
Comparisons (according to reviewers)
- The T66 offers more refinement and a more 'of-a-piece' sound than the Triton One.R
- Has internal structural improvements that make it even more stable and rigid than previous generations
Takeaway: The GoldenEar T66 delivers audiophile-grade sound and aesthetics, with powerful bass and exceptional detail. These speakers are easy to incorporate into nearly any environment, and have the power to let the listener appreciate all the nuances in favorite songs or movies.
Video review
Our take on the brand
Powerful, rich sound in a compact design. Designed for both digital and analog sources, Duetto is a versatile combination of Italian style and contemporary function. Big sound in a compact design, Duetto marks Sonus faber's inaugural active stereo wireless speaker system. Powered by four bespoke amplifiers, Duetto presents an all-in-one sound solution, harmoniously blending a multitude of connectivity options while keeping the listening experience wire-free.
Double the sound, not the size. Inspired by a harmony produced by two instruments, Duetto sets a new standard for wireless high-fidelity sound in a compact design.
Ultra Wide Band Technology
Duetto employs Ultra Wide Band (UWB) technology, enabling communication between the two speakers. The wireless transmission avoids latency and interference by other home networks, while guaranteeing a wide frequency spectrum to send data signals at high speeds.
SENSO™ Technology by Sonus faber
The leather top panel allows the user to control and set up speaker functions — such as playback, volume, input selection, and connections — with a buttonless interface through simple fingertip gestures.
Sonus faber's iconic lute-shaped design takes inspiration from musical instruments. Crafted from wood, the cabinet ensures structural solidity, rich timbre, and musicality, while effectively eradicating internal resonances to shape the unmistakable Sonus faber Natural Sound.
Hear – and see – to believe. Duetto takes note of Sonus faber's most iconic design cues and natural materials.
Product Strengths
- Gorgeous sound is clear, smooth, detailed, and dynamic
- Elegant design is dashingly elegant, minimalist aesthetic, and painstakingly crafted for equal parts style and substance
- Impressive bass extension and output, described as deep and firm, surprising for their size
- Clear midrange makes voices sound purposeful, characterful, and entirely present
- Versatile connectivity with streaming and input options, including Chromecast, AirPlay 2, phono pre-amp, and HDMI ARC/eARC
Product Considerations
- Some reviewers experienced streaming and HDMI ARC reliability issues
- Input and control layout can be inconvenient and awkward
- Prototype unit had operational bugs
- No bass level adjustment is available, though it could be added in mobile app
Comparisons (according to reviewers)
- Vs KEF LS50 Wireless II—the KEF LS50 Wireless II is a similarly high-end option
- Vs PSB Alpha iQ—the PSB Alpha iQ is a more compact wireless speaker package than the Sonus Faber and is comparatively lighter on bass
Takeaway: The Sonus Faber Duetto speakers are well-suited for those seeking amazing sound and a beautiful design in one package. These speakers are easy to connect and use, and fill the room with rich, detailed audio.
Video review
Our take on the brand
The Anniversary 10 (A10) is a culmination of all the experience that we have gathered over the last 10 years of designing and building HiFi speakers. Over the last decade, we have produced and sold thousands of speakers to happy HiFi enthusiasts from all around the world. Listening to feedback from our customers, learning from the best and adding our own flavor to the mix, has created extremely popular and critically acclaimed speakers, and now, this has evolved into our best sounding speaker yet. The A10 is something we are truly proud of, both in terms of sound, look and production values. It is a true celebration of our passion for amazing high-end sound, great engineering and high value products.
Product Strengths
- Exceptional bass performance for its compact size, with bass that is fast, clear, and tight
- Multiple 'Master Tunings' offer customizable sound profiles, adapting to different room acoustics and user preferences
- A high-quality Purifi woofer and SB Acoustics tweeter contribute to clarity, detail, and low distortion
- A solid wood cabinet made in Denmark provides a luxurious look and feel
Product Considerations
- Bass output may diminish or be limited at high volumes to protect the drivers from damage
- A separate purchase of the Platin Stereo Hub may be required for full wireless functionality and room correction
- The 'Made in China' label applies to the electronics inside the cabinet
- While the A10 offers impressive bass, some may still prefer to add a subwoofer for a true full-range experience
Comparisons (according to reviewers)
- Vs Buchardt S400 Mark II, the A10 is more transparent with greater inner detail, clarity, and top-end extension—and deeper, tighter bass—while the S400 Mark II is more relaxed and forgiving with harsh recordings
- Vs Buchardt A500, the A10 has comparable performance, with possibly a crisper sound in some instances
Takeaway: The Buchardt Anniversary 10 is a compact yet powerful speaker that offers a customizable listening experience. Its impressive bass and versatile tuning options make it a great choice for those seeking a high-quality audio solution in a small to medium-sized room.
Video review
Our take on the brand
What competes at this price?
Our Summary
Product Strengths
- Retains the neutrality, realism, and musicality associated with the M&K Sound design in a discreet enclosure
- The front three IW150 models perfectly match each other in terms of tonality and are utterly transparent
- Capable of a pleasingly open sound that fills the room with wonderful detail and clarity
- The transient response of these speakers is incredible, viscerally delivering the scares as the soundtrack suddenly goes from relative silence to very loud
Product Considerations
- Slightly lacking at the low-end, designed to be used with a subwoofer
- Placement can be non-trivial and orientation moreso because of the multi-woofer/tweeter design, resulting in a weird dispersion that will sound different depending on which side of the speaker one is on
- Putting them in the wall might change its sonic integrity
Comparisons (according to reviewers)
- IW150 is an in-wall version of the M&K Sound S150
Takeaway: The IW150 delivers the detail, clarity, and transience of a professional studio monitor from a discreet, in-wall enclosure. If one is looking for in-wall speakers that vanish into their decor, then these are worth an audition.
Video review
Our take on the brand
Our Summary
Product Strengths
- Can be used in both portrait and landscape mode, making it ideal for just about any home theater setup
- Saves space compared to freestanding speakers
- Available in black and white
- Requires an amplifier to power them (passive speakers)
Takeaway: The M&K Sound M90 is a versatile speaker that can be used in different orientations, which makes it adaptable to many home theater setups. It is a good solution for anyone who wants wall-mounted speakers without complicated installation.
Video review
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Our Summary
Product Strengths
- Remarkably precise, unusually musical, and vivid sound, creating an open, inviting sound and bringing superb clarity and resolution to music
- Wide, airy, and holographic soundstage with excellent directivity, spreading reflections evenly for a consistent sound experience even when not in the 'sweet spot'
- Innovative Meta Material Absorption Technology (MAT) absorbs 99% of unwanted sound coming from the rear of the tweeter, leading to improved clarity, precision, and detail in the high frequencies—and better overall composure when the mix gets complicated
- A dedicated woofer handles the bass, allowing the coaxial system to focus on the important midrange without interference, which results in improved bass performance and power handling
- Neutrality and balanced frequency response, combined with excellent linearity, makes it very suitable for equalization, allowing users to adjust the sound to their preferences
Product Considerations
- The bass, while tight and tuneful, might not provide the 'gut punch' or chest-thumping experience some listeners prefer, and a subwoofer is recommended for those seeking more pronounced low-end dynamics
- The treble response, while detailed and airy, may sound a bit bright when the speaker is aimed directly at the listener (on-axis), and a slight toe-out (5-10 degrees) is recommended to relax the high frequencies
- Some reviewers note that they may sound a little flat or leaner at very low listening volumes, excelling more when given some 'juice' and volume
- The piano black finish, while beautiful, is prone to fingerprints and requires care to maintain its appearance
Comparisons (according to reviewers)
- Vs. LS50 Meta: Considered a better, more complete speaker with a more balanced presentation from top to bottom—and a more fleshed-out sound
- Vs. Bowers & Wilkins 705 S3: Puts the treble on a much tighter leash, while the 705 S3 can come on as just too much in that lower treble region
- Vs. Buchardt S400 Mark II: Is leaner, airier, and more spatial, while the Buchardt is warmer, thicker, and has more bass punch
- Vs. Revel M106: The Revel M106's directivity is nowhere near as good as the Kef R3 meta
Takeaway: The KEF R3 Meta is a well-rounded and high-performing loudspeaker, offering a detailed and balanced sound signature with excellent imaging capabilities. It is a great choice for those seeking a neutral and engaging listening experience.
Video review
Our take on the brand
Our Summary
Product Strengths
- Highly accurate sound with surprising dynamic and bass abilities
- Intuitive BluOS app provides access to many streaming services, multi-room control, and customisation options
- Wide range of connectivity options including HDMI eARC, phono inputs, USB, Wi-Fi, and aptX HD Bluetooth
Product Considerations
- BluOS app required for setup and primary use, no dedicated remote control is provided
- BluOS app can be quirky, and there are potential setup difficulties and HDMI connectivity issues
- Lacks room EQ features for near-wall or desktop placement, and doesn't have enough output for larger rooms without a subwoofer
Comparisons (according to reviewers)
- Vs SVS Prime Wireless Pro, the Alpha iQ provides a deeper soundstage and more filled-in sound
- Vs Q Acoustics's Q Active 200, the Alpha iQ delivers greater sense of scale
- Vs Bowers & Wilkins Panorama 3, the Alpha iQ provides more transparent sound and better dynamic range
- Vs ELAC Debut ConneX, the Alpha iQ offers wider-ranging connectivity and a dedicated control app
- Vs KEF LSX II, the Alpha iQ has a feature-rich app and multi-room audio skills
- Vs Alpha AM3, the Alpha iQ is physically larger, with more rated power and wireless connection between speakers
Takeaway: The PSB Alpha iQ is a compact, all-in-one streaming speaker system with excellent sound quality and versatility, making it a great addition to smaller spaces. Its multiple connectivity options and simple setup allow one to easily enjoy music from various sources.
Video review
Our take on the brand
Our Summary
Product Strengths
- Elegant and luxurious design embodies the classic Sonus Faber look with a curvaceous shape, walnut wood exterior, and appealing aesthetics
- Impressive soundstage and room-filling performance–the Crescendo technology creates a wide and immersive soundstage that exceeds the physical size of the speaker
- Good sound quality, with solid, full, and tight bass, along with clear midrange and vocals
- Setup is relatively easy and user-friendly, with intuitive controls and compatibility with various streaming services
- Extensive wireless connectivity (AirPlay 2, Google Cast, Spotify Connect, Tidal Connect, aptX HD Bluetooth, and Roon) and wired options (HDMI ARC, Ethernet, switchable phono/line input via dongle)
Product Considerations
- Price is expensive compared to other wireless speakers on the market
- Awkward placement of back-panel connectors, as they are buried in the base, making them difficult to access
- Treble might be a little too soft and lacking some presence for some listeners
- There is no bespoke Omnia control app
- Some users reported compatibility problems with Android devices
Comparisons (according to reviewers)
- Compared to the Naim Mu-so 2, the Omnia has a wider, more spacious soundstage and unrivalled clarity, while the Mu-so 2 has a warmer tone and superior sense of musical cohesion
- The Omnia's curves remind some of the Bowers & Wilkins Zeppelin
Takeaway: The Sonus Faber Omnia is a stylish and well-equipped wireless speaker that offers an immersive listening experience for smaller spaces. It is a good choice for audiophiles who appreciate both aesthetics and high-quality sound and are willing to pay a premium.
Video review
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